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Finding the Fourth Proportional to 17,983.53, 26,978.58 and 5,503.41

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Solution

The fourth proportional to 17,983.53, 26,978.58 and 5,503.41 is: 8,256.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,983.53 : 26,978.58 = 5,503.41 : x
  2. Step 2: Convert to fraction form
    17,983.53/26,978.58 = 5,503.41/x
  3. Step 3: Cross multiply
    17,983.53x = 26,978.58 × 5,503.41
  4. Step 4: Simplify right side
    17,983.53x = 148,474,186.96
  5. Step 5: Solve for x
    x = 148,474,186.96/17,983.53
  6. Step 6: Final answer
    x = 8,256.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.